Hideo \hi-deo\ as a boy's name is of Japanese origin, and the meaning of Hideo is "excellent man". Baseball player Hideo Nomo.

Baby names that sound like Hideo are Hadi, Hewet and Hiatt. Other similar baby names are Hiro, Fido, Hedeon, Gide, Heder, Haden, Haider, Lidio, Rodeo and Tadeo.